package com.jmb.lease.common.utils;

import com.jmb.lease.common.exception.LeaseException;
import com.jmb.lease.common.result.ResultCodeEnum;
import io.jsonwebtoken.*;
import io.jsonwebtoken.security.Keys;

import javax.crypto.SecretKey;
import java.util.Date;

public class JwtUtil {
    private static final long tokenExpiration = 60 * 60 * 1000L;
    private static final SecretKey tokenSignKey = Keys.hmacShaKeyFor("M0PKKI6pYGVWWfDZw90a0lTpGYX1d4AQ".getBytes());

    public static String createToken(Long userId,String username) {
        return Jwts.builder()
                .setSubject("USER_INFO")
                .setExpiration(new Date(System.currentTimeMillis() + tokenExpiration))
                .claim("userId", userId)
                .claim("username", username)
                .signWith(tokenSignKey, SignatureAlgorithm.HS256)
                .compact();
    }
    public static Claims parseToken(String token) {
        if (token == null){
            throw new LeaseException(ResultCodeEnum.ADMIN_LOGIN_AUTH);
        }
        try {
            JwtParser jwtParser = Jwts.parserBuilder()
                    .setSigningKey(tokenSignKey)
                    .build();
            return jwtParser.parseClaimsJws(token).getBody();
        }catch (ExpiredJwtException e){
            throw new LeaseException(ResultCodeEnum.TOKEN_EXPIRED);
        }catch (JwtException e){
            throw new LeaseException(ResultCodeEnum.TOKEN_INVALID);
        }
    }
}
